Quiz 4 Flashcards
Osteoarthritis – findings on plain film:
- joint space narrowing (indicating a loss of articular cartilage)
- marginal osteophyte formation,
- subchondral bone cysts
- sclerosis
Most sensistive marker for RA:
Anti-citrullinated protein antibodies – specificity ~95% bc rarely + if RA not present
What joint is the first to be affected by Gout?
classic joint of involvement in gout is the 1st MTP joint.
What type of crystals are seen in Pseudogout?
calcium pyrophosphate crystals CPPD
What protein is decreased in Duchenne’s Muscular Dystrophy
dystrophin
Duchenne’s = MC Muscular Dystrophy
What condition is associated with Thymic abnormalities?
Myasthenia gravis
In what condition is acetyl-choline release inhibited at the presynaptic calcium channel
Lambert-Eaton syndrome
Hist of Dermatomyositis
mixed B and T cells and perifascicular muscle fiber atrophy
- perivascular inflammatory infiltrate
In what condition do we see the appearance of vacuoles in the muscle, deposits of amyloid-related proteins within the muscle cells and inclusions?
Inclusion body myositis
MC malignancy soft tissue tumor in children
Rhabdomyosarcoma
HIST: -Mosaic pattern of lamellar bone which is likened in appearance to a jigsaw puzzle
Paget’s disease
Name for hypermineralization
Osteopetrosis: a rare inherited disorder whereby the bones harden and become more dense.
MC organism in Osteomyelitis
Staph Aureus
XRAY for Aneurysmal bone cyst
honey-combed appearance on xray
Solitary Bone Cyst:
symmetrical in its appearance
